A GPS watch uses wrist-top Global Positioning Satellite (GPS) technology to provide a convenient mapping device for the user. Often these watches include integrated chronograph, compass, barometer, altimeter and thermometer functions. Fitting GPS technology into a wrist-top device that is easy to use and consumes little power takes some creative engineering and ingenuity.
The GPS watch uses satellite triangulation to determine the exact position of the wearer, normally within a few feet (about 1 meter). By checking your position periodically, the GPS watch calculates distance traveled and rate of speed
Marking waypoints, or distances to existing waypoints, are part of the feature set.
A good GPS watch will ensure you stay on the trail even when nature has obscured landmarks, or intersecting paths make it difficult to follow. A GPS watch with a built-in compass can be a true life saver to anyone who travels off the beaten path. |
One feature to watch for when considering a GPS watch is PC integration. By using proprietary software, an integrated GPS watch can download or upload maps. A PC-enabled GPS watch can also be a great training tool. Just upload consecutive logs from your GPS watch to your PC and the software will analyze and compare your performance.
In the most basic form, a runner's GPS watch is nothing more than a stop watch and a handheld unit mixed into one. More advanced systems possess functions such as heart rate monitor, performance indicators, distance meters and much more. |
